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SDSS J1038+4849 Smiling lens , 



    
        

            AstroGG
SDSS J1038+4849 Smiling lens
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SDSS J1038+4849 Smiling lens

Technical card

Imaging telescope or lens:CELESTRON Edge HD 800

Imaging camera:Atik 460ex

Mount:Sky-Watcher EQ8

Guiding telescope or lens:CELESTRON Edge HD 800

Guiding camera:Starlight Xpress Lodestar-C

Focal reducer:Celestron EdgeHD 8 0.7x Reducer

Software:Photoshop CCPHD guidingNeat Image

Filters:LRBG

Accessories:Starlight Xpress OAGStarlight Xpress SX USB Filter Wheel 5x2"


Dates:March 25, 2017

Frames:
B: 14x600"
G: 16x600"
L: 158x600"
R: 16x600"

Integration: 34.0 hours

Avg. Moon age: 26.73 days

Avg. Moon phase: 8.59%


Basic astrometry details

Astrometry.net job: 1531553

RA center: 10h 38' 42"

DEC center: +48° 49' 19"

Pixel scale: 0.621 arcsec/pixel

Orientation: 310.193 degrees

Field radius: 0.248 degrees


Resolution: 2390x1594

Description

After seeing beautiful images of this objet from Josh Smith and Detlef Hartmann, I had to try it myself. My image is a bit disappointing but I could not convince myself to throw away all that exposure time.

The two eyes of the smiling face are galaxies 4.5 billions light years from Earth. Their strong gravitationnal field bends space-time and distort light coming from galaxies behind.

I included an image from the Hubble Space Telescope for comparison.

Comments

Author

AstroGG
AstroGG
License: Attribution-NonCommercial-ShareAlike Creative Commons
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SDSS J1038+4849 Smiling lens , 



    
        

            AstroGG